Pasteurizer



Y. KOKUSHO.

PASTEURlZER.

APPLICATION man ocrA 14,1920.

Patented sept. 5, 1922;

2 SHEETS-SHEET l.

WW1/Leos Y. KOKUSHO.

PASTEURIZER.

APPLICATION FILED ocTj 14,1920.

l Patented Sept. 5, 1922.l

2 SHEETS-SHEET 2.

'Yosnro kokosno, or- PHILAnnLri-rrn, PENNSYLVANIA.

' PASTE-Umm Application led October 14, 1920. Serial No. 416,7'91.' 'J

Thisinvention relates to an improved pas!` teurizer, and one object of the'inventionA is to provide a pasteurizer in which cool milk 15 may be delivered to a preheater heated'by means vof hot water, the milk being then delivered to a heater and the water which1 has been cooled in the preheater by heating the milk delivered to a precooler through v which the hot milk from the milk heater passes, passage of the hot milk through the precooler causing the cooling water therein to be heated and thisvhot water thendeliw ered to a reservoir tank from which the hot water will be delivered to the preheater.-

Another object of vthe'invention is to so construct this device that it is onlyv necessary to heat the water ofthe reservoir tank by an outside means when -rst starting the pasteurizerin operation,' the water being cooledl when the heat thereof is takenupby' the milk in the preheater and the water being again heated by taking up'the heat from the milk vdelivered to the precooler-,from

" n heater.`

the milk heater.'

Another object of the'invention is tov prof Y vide 'an' improved type of milk heaterso constructed that 'peparable side sections are provided .which when brought together will- 40 provide a milk channel through which the milk passes, electrodes being positioned in and insulated'v from the wallsof the heater so that the current of electricity will pass through the milk in completing a circuit 'and thus cause the milk to be heated as, 1t passesl through the heater.

Anotherv object of the invention isrto'so construct this heater that the. separable sections thereof may beeasily and quickly taken apart or fput together thus permitting the heater to be easily andoquickly cleaned.

Another object of the invention'is' to so v construct this pasteurizer that one section of the heater may` be' 4a relatively stationary section and the second a relatively-movable sectlon mounted upon tracks of a framerv and ,thus permitted of'being. easily 'moved into v and out of operative engagement with the f relatively stationary sectlon.:

Another object of the invention is to 4so' construct this pasteurizer that the preheater' n 'may be mounted in a Jframe above the milk.l

heater, and the precooler and 'water reservoir mounted adjacent the preheater and milk heater vthus', providing a compact construetion. s

Another object of'the invention is to' 'so construct. this device that it will ,be `free from noise and require asmall 'amount off.

attention when it is inoperation'.

an ino` drawin s wherein :l

This invention is illustrated in the accomv Figure 1 1s aperspectivevle'w "of t'he'in,"1 'k proved pasteurizer Figui-e2 is ak-perspective view of the relatively movable sectionvofthe milk heater.

Figure 2a -i's a perspective view' 'of ,therela-fj4 tively stationary section ofthe milk'heater.

transverse' sectional.

Figure 3 isa. vertical view of the milkheater.` l

Figure 4 is'a fragmentary.sectional' view taken along the line 4;-40f Fig', l. Figure 51is an enlarged fragmentary sec;

relatively stationary section ofv the4 'milk tional view through the upper portion' of the.'

This improved v pasteurizeris'` Y provided the preheater and dropping into the trough 3. This preheater is connected with the 4tio'naltftype of construction and includesjan upper -trough Q .andfalower'trou -hv 3,' the milk to 'be preheated ovving into t 'e trough 2 through apipe 4; and -from-'thetrou'gh 2` passing ldown over'the Water-heated pipe of crossbars 5 carriedby the standards 6 of a supporting frame and therefore'the preheaterl will `be supported in an elevated'posi-v l. l.

tion. The frame which supports this preh'eater islprovided with additional Standards 7 and 8 and the standards 7 Vare connected with each other by a'connecting bar 9 and i thus with the standards 6 by connecting bars 10 and 11. The standards 8 are connected with a longitudinally extending bar 12 which is connected with the standards 6 at the points where the standards are engaged by the bars or rails 11 and therefore a very strong and durable trame will be provided which will be easy to erect.

A precooler 13 is positioned upon the ground adjacent the frame carrying the preheater and this is also of a conventional construction and provided with an upper trough 14 for receiving heated milk and a lower trough 15 for receiving the cooled milk. This trough 14 is positioned above the pipes ot the precooler and is of similar construction to the trough 2, a plurality of openings 14 being provided in the bottom or" the trough so that the milk will pass from the 'trough in small streams vwhich will pass down upon the pipes of the precooler. A casing 16 is provided about the pipes ot the precooler so that air will be excluded and milk which is passing through the precooler is protected Jrom exposure to the atmosphere. el draw-o pipe 1T is provided for the trough 15 so that the cool milk from the trough 15 may be led to a suitable point of deposit, such tor instance as a refrigerator or bottling machine. In order to supply heating and cooling water for the preheater and precooler, there has been provided a warm water reservoir 18 which is positioned adjacent the precooler so that warm water from the precooler will pass through the pipe 19 and into the reservoir. This hot water passes out of -the reservoir through the pipe 2O and into the centrifugal pump 21 which is operated by means of a suitable electric motor 22 and forces the hot water through the pipe line into the lower portion of the preheater. The water in passing through the preheater gives 0H its heat to the milk which is to be preheated and passes out of the preheater into the pipe 24 in the form of cool water. This cool water enters the precooler at the lower end and in passing up through the pipes of the precooler, takes up the heat from the milk to be cooled and passes out through the pipe 19 in the form of `hot water. Tt will thus be seen that as the water circulates, it is tirst cooled in preheating the milk and is then heated in precooling the milk. Therefore, it is only necessary to heat thewater in the reservoir by external means when first putting the machine into operation.

A milk heater is positioned in the frame beneath the preheater and is constructed as shown in the detailed views of this milk heater. This milk heater is provided with a relatively stationary section 25 which is connected with the standards 8 by the attaching brackets 26 as shown in F ig. 1. The

van i'nspection of these figures, it will be seen that each of these sections is provided with an outer wall 32 and an innerv wall 33, the inner wall being folded longitudinally thus providing arms 34 which extend in overlapping relation. A covering or coating 35 formed of porcelain, glass or any other suitable insulating material which will be clean and sanitary, is provided for each of the p inner walls and the upper and lower end portions of these inner walls and coverings are curved as shown in Fig. 3 so that when the two sections ot the heater are connected, there will be provided upper and lower pockets 36 and 37 connected by a milk passage or channel 38 having a Zig-Zag path. Heads 39 are hingedly connected with the stationary section and provided with openings 40 and 41 for registering with the pockets 36 and 37 when the heads are swung to a closed position and these heads are provided with spaced fingers 42 :tor engagement by securing bolts 43 carried by the movable section. Similar bolts 44 are provided upon the stationary section for passing through notches 45 formed in the upper and lower flanges ot' the movable section and it will thus be seen that when the movable section is in engagement with the static-nary section and the bolts 43 and 44 swung to the operative position and tightened, the movable section will be securely but releasably connected with the stationary section. The jaws or heads and the contacting upper and lower portions of the two sections will, of course, be provided with a water-tight lit to prevent leakage ot milk from the heater, suitable packing being provided if. necessary. F rom v an inspection of Fig. 3, it will be seen that an electrode 46 is provided adjacent the upper end ot' the milk channel and a second electrode 47 is provided adjacent the lower end of this milk channel. Each of these electrodes is in the form of a bar as shown in Fig. 2a which is imbedded in the insulating coating 35, and as shown in Fig. 5 is provided with a stem 48 which extends outwardly through the walls 33 and 32 for connection with a wire 49 and it will thus be seen that the electrodes will be in spaced relation and insulated from each other.but will be positioned in the milkchannel so that lao aeaaere when the milk channel is lined with milk the -space between the two electrodes will be bridged by the milk and thus'electric. current permitted to pass through the milk from one electrode to the second. This will cause the milk to be heated. Apipe is positioned-vertically, as shown 'in Fi 1 and has at its upper end abranchvl-w ich is connected with the trough 3' of the preheater and atits lower end a valve controlled branch '52 which extends through the lower opening 41 for communicating with the lower milk pocket-37. A drainpipe 53 extends from the branch 52andsincev the branch 52 is provided with a valve 54 and the drain pipe with ahvalv'e 55, the lowof milk through these pipes canbe veasily conf trolled. A pipe 56 which communicates with the trough 14 and is provided with a control-valve 57 'and thermometer. 58 y extends through'the upperA opening 40 land communicates with the upper milk pocket 36. Therefore the` milk from they reheater may passinto the pocket 37 and a ler pass. ingnpwardly through the milk channel to the pocket 36,'may pass from the heater through the pipe 56-and-into the troughI A14 of theprecoler.

lhen this devicex is in use, heated water will be placed-'in .the reservoir '18 orwater may be placed in this reservoir and `a suit-A able heater vprovided beneathfthe reservoir to initially heat the water. The hot water is pumped through the pipe 23' to 'the pre- 35 heaterand f in 'passing upwardly through this heater, the heat of the. water will'be taken upby the milk whichl is flowing overv L the pipes of the preheater. This milk iiows "down intothe trough and from 'the trough the milk-win be hea'cedj by the heating man to the poin desired the valve 57 willf be i pipe 56'int'o the trough 14 of the. precooler.

The Coldwater fromthe preheater passes A upwardly through the pipes ofthe precooler..

and -as `the hot milk' passes yover the "-.pipes ofthe precooler,v from thetrough 14, the

heat-will be taken up b'yfthe water in the pipes of the precoolenf The cooled milk will pass out vor thetrough v15-of the 'pre 60 cooler through the'pipe 1 tothe refrigerator or to any otherv suitablefreceptacle andthe water whlchhas become heated will pass out of the precooler through the pipe 19 back into vthe reservoir 1,8. It'willthus 'bel seen that when the device is in use, it Ais only together again.

'necessary to initiall heat'thefwater-.of-theV reservoir.- When it 1s desiredto discontinue use 'of the pasteurizer and .clean the same, I.

the motorv 22- willbe stopped. and the valve.'

54 closed and the valve 55 opened. rlhe milk curing bolts 43 and 44 will be releasedI thus releaslng the relatively movable section of y the heater from. the relatively stationary sec# tion. Thismovable section can ,then vbe in the heater will then drain out through the pipe v53 into' a suitable receptacle. The semoved along the rails 11 and the two sections will be separated. Each of the sections can thenbe thoroughly .cleaned and then put ive steam can then be forced through the heater by connecting a steam pipe withv the pipe 53 andas the live steam passes through the heater andl out through, the pipe l56, the heater will be thoroughly sterilized. Therefore the heater can be easily and quickly cleanedy and then put 'together and sterilized. 'When in use the p'a'steurizer is noiseless andffurther doesfnot require any attentionexceptto pro erlyset the valves' 54 and v57 to control t e speed 9o 'I a-twhich the anilk passes through the heater.

Properr adjustment of'the valves will cause i the milk to flowv at a' desired speed and therefore the 5 milk will be heateda uniformv amount.'

I claim: i

` 1.,In a pasteurizer, a milk heaterl com-I Y prising rseparable sidef sections having their edge portions in contacting relatiom vyall members of insulatin material carried by the side sections and aving extensions ex-y tending in overlapping and spacedrelation to provide a milk channel having an inlet .at-one end andan outlet at its opposite end,

and electrodes extending through the insu- '..lating wallmember, milk in the channel A bridging thespace between the ,electrodes andcompleting a circuit to heat the milk.

2..- In a pasteurizer, a milk heatercomprisin a relativel stationary section and` a relto provide arms the arms of one section extending invoverlapping relation to the second sectlonj' and in Ispaced relation W thereto andthe edge yportions ofthe sectionuhaving, -contacting 'relation to vprovide a milk passage between the 'overlappingarms and hav-l. w

thel second fend; an`dv electrodes extending through. -the wall` of one section and insuportion'of the milk passage.

lated therefromrand' extending intothe end l j 3. In-la pasteurlzer, a' milk heater comv prsing ax body-having lseparablel side sec"- `tions,` each" having an )outer wall, an inner4 wall having spacedv arms, a covering of insulatin "material lior the inner wall, the arms o said'sectiofns extendlng in overlapping and spacedrelation toprowlde a milk -at1vely movab esection each havin Vanvouter -jrwal l', an inner 'wall crimped longitudinally passage, and the upper and lowein end poitions of the inner Walls and coverings being bent to provide enlarged pockets extending longitudinally ei the body, the pocket at one end having communication Wili en inlet and the pocket a die second end having communication with an out-let, and eleetrodes extending *through the Walls and in sulating covering whereby milk passing through the milk passage may bridge the l0 space between the electrodes,

ln testimony whereof ll have lfieieunte se in hand.

y YSl-H@ KOKUSH. 

